Cutting Deck Maintenance; Separating The Cutting Decks From The Traction Unit; Mounting The Cutting Decks To The Traction Unit; Servicing The Blade Plane - Toro Groundsmaster 4500-D Operator's Manual

Cutting Deck
Maintenance
Separating the Cutting
Decks from the Traction
Unit
1. Position the machine on a level surface, lower
the cutting decks to the floor, turn the key in the
ignition switch to the O
the parking brake.
2. Disconnect and remove the hydraulic motor
from the deck (Figure
spindle to prevent contamination.
Figure 84
1. Motor-mounting screws
3. Remove the lynch pin or retaining nut (GM 4700
only) securing the deck carrier frame to the
lift-arm pivot pin
Figure 85
1. Lynch pin
4. Roll the cutting deck away from the traction unit.
position, and engage
FF
84). Cover the top of the
(Figure 85).
2. Lift-arm pivot pin
Mounting the Cutting Decks
to the Traction Unit
1. Position the machine on a level surface and turn
the key in the ignition switch to the O
2. Move the cutting deck into position in front of
the traction unit.
3. Slide the deck carrier frame onto the lift-arm
pivot pin. Secure with lynch pin or retaining nut
(GM 4700 only)
4. Install the hydraulic motor to the deck
84). Make sure that the O-ring is in position and
not damaged.
5. Grease the spindle.

Servicing the Blade Plane

The rotary deck comes from the factory preset at 5
cm (2 inches) height of cut and blade rake of 7.9 mm
(0.310 inch). The left and right heights are also preset
to within ± 0.7 mm (0.030 inch) of the other.
The cutting deck is designed to withstand blade
impacts without deformation of the chamber. If a solid
object is struck, inspect the blade for damage and the
blade plane for accuracy.
Inspecting the Blade Plane
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1. Remove the hydraulic motor from the cutting
deck and remove the cutting deck from the
tractor.
2. Use a hoist (or minimum of 2 people) and place
the cutting deck on a flat table
3. Mark 1 end of the blade with a paint pen or
marker. Use this end of the blade to check all
heights.
4. Position the cutting edge of the marked end of
the blade at 12 o'clock (straight ahead in the
direction of mowing)
height from table to cutting edge of blade.
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65
FF
(Figure 85).
(Figure
(Figure 86) and measure
Figure 86
position.
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